An electrical connector assembly includes a cage having an upper wall, a lower wall, and side walls that extend from the upper wall to the lower wall. The side walls have exterior sides. The cage includes an interior cavity and a divider that extends between the side walls and divides the interior cavity into at least two internal compartments. The cage includes a front end that is open to the internal compartments. The side walls have front edges at the front end. The internal compartments are configured to receive pluggable modules therein through the front end. An electromagnetic interference (EMI) cover is mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider. The EMI cover includes a flap that wraps around the front edge of a corresponding side wall. The flap overlaps and engages the exterior side of the corresponding side wall.
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15. An electrical connector assembly comprising:
a cage having a wall that includes an exterior side, the cage comprising an interior cavity and a divider that divides the interior cavity into at least two internal compartments, the cage comprising a front end that is open to the internal compartments, the wall having a front edge at the front end, the internal compartments being configured to receive pluggable modules therein through the front end; and
an electromagnetic interference (EMI) cover mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider, the EMI cover comprising a flap that wraps around the front edge of the wall such that the flap overlaps and engages the exterior side of the wall.
1. An electrical connector assembly comprising:
a cage comprising an upper wall, a lower wall, and side walls that extend from the upper wall to the lower wall, the side walls having exterior sides, the cage including an interior cavity and a divider that extends between the side walls and divides the interior cavity into at least two internal compartments, the cage comprising a front end that is open to the internal compartments, the side walls having front edges at the front end, the internal compartments being configured to receive pluggable modules therein through the front end; and
an electromagnetic interference (EMI) cover mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider, the EMI cover comprising a flap that wraps around the front edge of a corresponding side wall such that the flap overlaps and engages the exterior side of the corresponding side wall.
10. An electrical connector assembly comprising:
a cage comprising an interior cavity and a divider that divides the interior cavity into first and second internal compartments, the cage having a front end that is open to the first and second internal compartments, the first and second internal compartments being configured to receive first and second pluggable modules, respectively, therein through the front end, the divider comprising a front wall, a top wall, and a bottom wall, the top and bottom walls being spaced apart from each other to define a chamber therebetween, the front wall extending from the top wall to the bottom wall at the front end of the cage, and
an electromagnetic interference (EMI) cover mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider, the EMI cover comprising a front segment that covers at least a portion of the front wall of the divider, the EMI cover having first and second sets of electrically conductive springs that extend from the front segment into the first and second internal compartments, respectively, the first and second sets of electrically conductive springs being configured to engage and electrically connect to the first and second pluggable modules, respectively, when the first and second pluggable modules are received within the respective first and second internal compartments.
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The subject matter described and/or illustrated herein relates generally to electrical connector assemblies, and more particularly to electromagnetic interference (EMI) covers for electrical connector assemblies.
Various types of fiber optic and copper based transceiver assemblies that permit communication between host equipment and external devices are known. These transceiver assemblies typically include a pluggable module that is received within a receptacle assembly, which includes a receptacle connector that pluggable connects to the pluggable module. The pluggable modules are constructed according to various standards for size and compatibility, one standard being the Quad Small Form-factor Pluggable (QSFP) module standard. Conventional QSFP modules and receptacle assemblies perform satisfactorily conveying data signals at rates up to 10 gigabits per second (Gbps). Another pluggable module standard, the XFP standard, calls for the transceiver module to also convey data signals at rates up to 10 Gbps.
Receptacle assemblies typically include a metal cage having one or more ports that receive pluggable modules therein. But, electromagnetic interference (EMI) emissions may leak into and/or out of the cage and electrically interfere with the pluggable module(s) received within the cage or neighboring electrical devices, respectively. For example, some known cages include a divider that divide the cage into a plurality of ports for receiving a plurality of pluggable modules. EMI emissions may leak between an interface between the divider and one or more other segments of the cage, for example a side wall, a top wall, and/or a bottom wall of the cage.
In one embodiment, An electrical connector assembly includes a cage having an upper wall, a lower wall, and side walls that extend from the upper wall to the lower wall. The side walls have exterior sides. The cage includes an interior cavity and a divider that extends between the side walls and divides the interior cavity into at least two internal compartments. The cage includes a front end that is open to the internal compartments. The side walls have front edges at the front end. The internal compartments are configured to receive pluggable modules therein through the front end. An electromagnetic interference (EMI) cover is mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider. The EMI cover includes a flap that wraps around the front edge of a corresponding side wall such that the flap overlaps and engages the exterior side of the corresponding side wall.
In another embodiment, an electrical connector includes a cage having an interior cavity and a divider that divides the interior cavity into first and second internal compartments. The cage has a front end that is open to the first and second internal compartments. The first and second internal compartments are configured to receive first and second pluggable modules, respectively, therein through the front end. The divider includes a front wall, a top wall, and a bottom wall. The top and bottom walls are spaced apart from each other to define a chamber therebetween. The front wall extends from the top wall to the bottom wall at the front end of the cage. An electromagnetic interference (EMI) cover is mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider. The EMI cover includes a front segment that covers at least a portion of the front wall of the divider. The EMI cover has first and second sets of electrically conductive springs that extend from the front segment into the first and second internal compartments, respectively. The first and second sets of electrically conductive springs are configured to engage and electrically connect to the first and second pluggable modules, respectively, when the first and second pluggable modules are received within the respective first and second internal compartments.
In another embodiment, an electrical connector assembly includes a cage having a wall that includes an exterior side. The cage includes an interior cavity and a divider that divides the interior cavity into at least two internal compartments. The cage includes a front end that is open to the internal compartments. The wall has a front edge at the front end. The internal compartments are configured to receive pluggable modules therein through the front end. An electromagnetic interference (EMI) cover is mounted to the divider such that the EMI cover is engaged with and electrically connected to the divider. The EMI cover includes a flap that wraps around the front edge of the wall such that the flap overlaps and engages the exterior side of the wall.
The transceiver assembly 10 includes one or more pluggable modules 12 configured for pluggable insertion into a receptacle assembly 14 that is mounted on a host circuit board (not shown). The host circuit board may be mounted in a host system (not shown) such as, but not limited to, a router, a server, a computer, and/or the like. The host system typically includes a conductive chassis (not shown) having a panel (not shown) including one or more openings (not shown) extending therethrough in substantial alignment with the receptacle assembly 14. The receptacle assembly 14 is optionally electrically connected to the panel. Only one pluggable module 12 is shown in
The pluggable module 12 is configured to be inserted into the receptacle assembly 14. Specifically, the pluggable module 12 is inserted into the receptacle assembly 14 through the panel opening such that a front end 22 of the pluggable module 12 extends outwardly from the receptacle assembly 14. The pluggable module 12 includes a housing 24 that forms a protective shell for a circuit board 26 that is disposed within the housing 24. The circuit board 26 carries circuitry, traces, paths, devices, and/or the like that perform transceiver functions in a known manner. An edge 28 of the circuit board 26 is exposed at a rear end 30 of the housing 24 for, in an exemplary embodiment, pluggable insertion into a receptacle connector not shown) of the receptacle assembly 14. In an alternative embodiment, a straddle mount connector (not shown) is mounted to the circuit board 26 and exposed at the rear end 30 of the housing 24 for plugging into the receptacle connector.
Each pluggable module 12 interfaces to one or more optical cables (not shown) and/or one or more electrical cables (not shown) through a connector interface 32 at the front end 22 of the module 12. Optionally, the connector interface 32 comprises a mechanism that cooperates with a fiber or cable assembly (not shown) to secure the fiber or cable assembly to the pluggable module 12. Suitable connector interfaces 32 are known and include adapters for the LC style fiber connectors and the MTP/MPO style fiber connectors offered by Tyco Electronics Corporation (Harrisburg, Pa.).
In general, the pluggable modules 12 and the receptacle assembly 14 may be used in any application requiring an interface between a host system and electrical and/or optical signals. Each pluggable module 12 interfaces to the host system through the receptacle assembly 14 via a corresponding receptacle connector of the receptacle assembly 14. The receptacle connectors are located within an electrically conductive cage 36 (which is sometimes referred to as a “receptacle guide frame” or a “guide frame”) of the receptacle assembly 14. As illustrated in
The cage 36 includes a divider 50 that divides the cage 36 into the plurality of internal compartments 42 shown in
The front end 38 of the cage 36 is configured to be mounted, or received, within the opening in the panel. The receptacle assembly 14 further includes a bracket 56 and a gasket 58. The gasket 58 extends around the front end 38 of the cage 36 to facilitate reducing and/or containing EMI emissions. When the front end 38 of the cage 36 is mounted within the panel opening, the gasket 58 is sandwiched between the bracket 56 and the panel. Optionally, the gasket 58 is configured to be at least partially compressed between the bracket 56 and the panel. EMI gaskets 60 are mounted to the front end 38 of the cage 36. The EMI gaskets 60 include electrically conductive springs 62 that extend within the ports 40 along a portion of the internal circumferences of the ports 40. The springs 62 engage the corresponding pluggable module 12 when the module 12 is installed in the corresponding internal compartment 42 of the cage 36 to facilitate reducing and/or containing electromagnetic interference (EMI) emissions by providing a plurality of contact points that ground the pluggable module 12 to the cage 36.
Although the cage 36 is shown as including a plurality of internal compartments 42 and a plurality of ports 40 for electrically connecting a plurality of pluggable modules 12 to the host circuit board, the cage 36 may include any number of internal compartments 42 and ports 40, arranged in any pattern, configuration, arrangement, and/or the like (such as, but not limited to, any number of rows and/or columns), for electrically connecting any number of pluggable modules 12 to the host circuit board. In the exemplary embodiment, the receptacle assembly 14 includes two internal compartments 42 and ports 40 that are arranged in a column, relative to the host circuit board, such that a width W of the divider 50 extends approximately parallel to the host circuit board. One example of another pattern, configuration, arrangement, and/or the like of the internal compartments 42 and ports 40 includes two internal compartments 42 and ports 40 that are arranged in a row, relative to the host circuit board, such that the width W of the divider 50 extends approximately perpendicular to the host circuit board.
It should be understood that in embodiments wherein the divider 50 extends approximately perpendicular to the host circuit board, the side wall 66 may be considered an upper and/or a lower wall, the side wall 68 may be considered an upper and/or a lower wall, the upper wall 64 may be considered a side wall, and the lower wall 48 may be considered a side wall. The edge 74, 76, 78, and/or 80 may be referred to herein as a “front edge”. Each of the side walls 66 and 68 may be referred to herein as a “first side wall” and/or a “second side wall”. Each of the upper wall 64, the lower wall 48, the side wall 66, and the side wall 68 may be referred to herein as a “wall”.
The cage 36 includes the divider 50. The divider 50 extends between the side walls 66 and 68, and more specifically extends from the side wall 66 to the side wall 68. The divider 50 divides the interior cavity 82 of the cage 36 into the internal compartments 42. The divider 50 includes a top wall 84 and a bottom wall 86, which include exterior sides 88 and 90, respectively. The exterior side 88 of the top wall 84 defines a boundary of one of the internal compartments 42a, while the exterior side 90 of the bottom wall 86 defines a boundary another of the internal compartments 42b. The interior sides 70 of the upper wall 64 and the side walls 66 and 68 define boundaries of the internal compartment 42a. The interior sides 70 of the lower wall 48 and the side walls 66 and 68 define boundaries of the internal compartment 42b. Optionally, the top wall 84 and/or the bottom wall 86 engages the housing 24 of the corresponding pluggable module 12 along a substantial entirety of the width of the respective internal compartment 42a and 42b when the corresponding pluggable module 12 is received within the internal compartment 42a and 42b, respectively. Each of the top wall 84 and the bottom wall 86 may be referred to herein as a “divider wall”. Each of the internal compartments 42a and 42b may be referred to herein as a “first internal compartment” and/or a “second internal compartment”.
The divider 50 includes a front wall 92 that extends from the top wall 84 to the bottom wall 86 at the front end 38 of the cage 36. The top wall 84 and the bottom wall 86 are spaced apart from each other to define a chamber 94 therebetween. The chamber 94 is optionally configured to hold one or more components, such as, but not limited to, an electrical component, an optical component, an indicator light, a status light, and/or the like. Optionally, the front wall 92 includes one or more windows 96 for exposing one or more components held within the chamber 94, for example for enabling an indicator and/or status light to be visible through the front wall 92. Each of the windows 96 may be referred to herein as a “divider window”.
The front wall 92 includes opposite edges 98 and 100 that extend from the top wall 84 to the bottom wall 86. Optionally, the divider 50 includes one or more flaps 102 that facilitate reducing and/or containing EMI emissions. In the exemplary embodiment, the divider 50 includes a flap 102a that extends from the edge 98 of the front wall 92, and a flap 102b that extends from the edge 100 of the front wall 92. The flaps 102a and 102b include exterior sides 104a and 104b, respectively, that are configured to engage the interior sides 70 of the side walls 66 and 68, respectively, of the cage 36. The flaps 102a and 102b may extend outwardly from the front wall 92 at any angle relative to the front wall 92 that enables the flaps 102a and 102b to engage the interior sides 70 of the side walls 66 and 68, respectively. In some embodiments, the flaps 102a and/or 102b extend outwardly from the front wall 92 at an approximately 90° angle relative to the front wall 92. In some embodiments, the flaps 102a and/or 102b extend outwardly from the front wall 92 at an oblique angle relative to the front wall 92. Optionally, the flaps 102a and/or 102b are resilient springs that are configured to resiliently deflect during engagement with the interior sides 70 of the side walls 66 and 68, respectively. Each of the flaps 102a and 102b may be referred to herein as a “divider flap”. Each of the edges 98 and 100 may be referred to herein as a “side edge”.
Referring again to
Referring again to
The cage 36 includes one or more tabs 118 that facilitate holding the EMI cover 52 on the front end 38 of the cage 36, and more specifically on the divider 50. The tabs 118 extend outwardly on the exterior sides 72 of the side walls 66 and 68 for cooperating with the EMI cover 52, as will be described below. The tab 118 on the side wall 66 is not visible herein.
The cage 36 includes tabs 120 that extend outwardly on the exterior sides 72 of the side walls 66 and 68. The tabs 120 cooperate with the EMI gaskets 60 to hold the EMI gaskets 60 on the front end 38 of the cage 36. More specifically, when the EMI gaskets 60 are mounted on the front end 38 of the cage 36, the tabs 120 are received within openings 120 of the EMI gaskets 60.
The EMI gaskets 60 optionally include flanges 121 that include front sides 123 that are configured to engage the rear side 114 of the bracket 56, as will be described below.
As described above, the EMI cover 52 includes one or more flaps 54 that facilitate reducing and/or containing EMI emissions. In the exemplary embodiment, the EMI cover 52 includes two flaps 54a and 54b that extend from the front segment 122 of the EMI cover 52. The flap 54a extends outwardly from the edge 124 of the front segment 122, while the flap 54b extends outwardly from the edge 126 of the front segment 122. The flaps 54a and 54b include respective interior sides 105a and 105b that are configured to engage the exterior sides 72 (
Each flap 54 includes an optional opening 134 that is configured to receive a corresponding optional tab 118 (
The flaps 54 optionally include a flange 136 that extends outwardly at an end 138 of the flap 54. The flange 136 of the flap 54b is not visible in
Optionally, the EMI cover 52 includes one or more sets 144 of a plurality of electrically conductive springs 146. In the exemplary embodiment, the EMI cover 52 includes two sets 144a and 144b of springs 146. The springs 146 of the set 144a extend into the internal compartment 42a (
The edges 124 and 126 of the front segment 122 of the EMI cover 52 extend along the edges 78 and 80, respectively, of the respective side walls 66 and 68. The edge 128 of the front segment 122 extends along an intersection of the top wall 84 and the front wall 92 of the divider 50, while the edge 130 extends along an intersection of the bottom wall 86 and the front wall 92 of the divider 50. The windows 132 of the EMI cover 52 are aligned with the corresponding windows 96 of the divider 50.
As can be seen in
The flap 102b of the divider 50 overlaps and engages the side wall 68 within the interior cavity 82 of the cage 36. More specifically, the flap 102b overlaps the interior side 70 of the side wall 68 and the exterior side 104b of the flap 102b is engaged with the interior side 70 of the side wall 68, as can be seen in
As should be apparent from a comparison of
The bracket 56 includes one or more flanges 154 that engage the gasket 58. More specifically, and as best seen in
As can be seen in
In the exemplary embodiment, the rear side 114 of the bracket 56 is engaged with the front sides 123 and 142 of the EMI gasket flanges 121 and the EMI cover flanges 136, respectively. In some alternative embodiments, the flanges 121 and/or 136 extend between the gasket 58 and the bracket 56. For example, in some alternative embodiments, the flanges 121 and/or the flanges 136 are positioned to engage the front side 152 of the bracket 56. In such alternative embodiments, rear sides 125 and/or 143 (
The embodiments described and/or illustrated herein may facilitate reducing or containing EMI emissions.
It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Dimensions, types of materials, orientations of the various components, and the number and positions of the various components described herein are intended to define parameters of certain embodiments, and are by no means limiting and are merely exemplary embodiments. Many other embodiments and modifications within the spirit and scope of the claims will be apparent to those of skill in the art upon reviewing the above description. The scope of the invention should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.” Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels, and are not intended to impose numerical requirements on their objects. Further, the limitations of the following claims are not written in means—plus-function format and are not intended to be interpreted based on 35 U.S.C. §112, sixth paragraph, unless and until such claim limitations expressly use the phrase “means for” followed by a statement of function void of further structure.
Fogg, Michael Warren, Dunwoody, Steven David, Long, Richard James, Wickes, Evan Charles
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Nov 16 2011 | FOGG, MICHAEL WARREN | Tyco Electronics Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027576 | /0251 | |
Nov 16 2011 | LONG, RICHARD JAMES | Tyco Electronics Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027576 | /0251 | |
Nov 21 2011 | DUNWOODY, STEVEN DAVID | Tyco Electronics Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027576 | /0251 | |
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Jan 01 2017 | Tyco Electronics Corporation | TE Connectivity Corporation | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 041350 | /0085 | |
Sep 28 2018 | TE Connectivity Corporation | TE CONNECTIVITY SERVICES GmbH | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 056514 | /0048 | |
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